21. A cylindrical pipe touches a wall and the ceiling of a room. The pipe is supported by
a brace. The ends of the brace are 85 cm
from the wall and ceiling. Apply what you
discovered in question 16. What is the
diameter of the pipe? Give the answer to the
nearest centimetre.
85 cm
85 cm​

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Can someone answer this question for me